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The weather in December in McAllen

It's warm in December in McAllen with an average temperature of 23°C. Temperatures this month range from a low of 18°C to a high of 28°C. At night, you can expect temperatures between 10°C and 17°C.

Looking for great weather? December is a good time to be in McAllen. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for McAllen, Texas. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 34°C in 2019, McAllen reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 3°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 25°C.

Rainfall amount

In December, there is an average of 40 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in December for McAllen

Click on any day in December to get detailed info about the usual weather on that day in McAllen. Check out the historical temperatures and precipitation over the past 10 years on this day.

December weather comparison

  McAllen New York
Average temperature 23°C 9°C
Max. temperature 28°C 12°C
Min. temperature 10°C -5°C
Total precipitation 40 mm 133 mm
Rainy days 6 days 17 days

Start of December

The month of December starts in McAllen with warm temps, averaging around 24°C during the day and nights around 15°C.

Mid December

By mid-December, daytime temps stay steady at around 24°C, with nights around 14°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of December

By the end of December, the average daytime temperature in McAllen is around 23°C, while nighttime temps are about 13°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

Find affordable trips to McAllen

UV index

The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

The hurricane season in McAllen runs from June to November.

Check out the climate of McAllen for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in December in McAllen, Texas. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in December in McAllen

Temperature in December in McAllen over the years

Precipitation charts

These charts show the average amount of precipitation in December in McAllen, Texas. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in December in McAllen

Total precipitation in December in McAllen over the years

Daily UV index in December in McAllen

This chart shows the average daily UV index in December in McAllen, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in December in McAllen

Have you been to McAllen in December?

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Average weather in McAllen by month

Click on a month below to see detailed weather info for McAllen. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.